Datasheet

Technical information DVIULC6-4SC6
8/12 Doc ID 11599 Rev 4
Figure 13. PCB layout considerations (V
CC
connection is application dependent)
It’s often harder to connect the power supply near to the DVIULC6-4SC6 unlike the ground
thanks to the ground plane that allows a short connection.
To ensure the same efficiency for positive surges when the connections can’t be short
enough, we recommend putting close to the DVIULC6-4SC6, between V
BUS
and ground, a
capacitance of 100 nF to prevent these kinds of disturbances (see Figure 12 and Figure 13).
The addition of this capacitance will allow a better protection by providing a constant voltage
during a surge.
Figure 14, Figure 6, and Figure 7 show the improvement of the ESD protection according to
the recommendations described in Section 3.3.
Figure 14. ESD behavior: measurement conditions (with coupling capacitor)
Important:
An important precaution to take is to put the protection device as close as possible to the
disturbance source (generally the connector).
D+1
C = 100nF
D-1
GND
DVIULC6-4SC6
D+2
D-2
V
CC
1
DVI
Connector
Side
V
cc
(+5V)
C=100 nF
ESD
SURGE
TEST BOARD
DVIULC6-4SC6H